4.1.2结构被动调谐减震控制的优越性和应用范围Advantagesandapplications of structural passive tuned vibration controlAdvantages(1)有效衰减结构的振动反应;Effectivelyreducethevibrationresponseofstructure(3)使用范围广;节省结构造价thewiderangeofapplication,cost-savingofthestructure(3)为某些重大结构的减震提供难以代替的途径;providingsomeimportantstructureswithirreplaceablewaysofvibrationabsorption(4)不仅适用于新建结构的减震控制,也特别适用于已有结构的减震改良:Not only suitable to the vibration control of the new structures but also theimprovementoftheexistedstructures(5)可充分利用已有结构的部件或设备作为子结构,不必专设;Makingthefull use of the existing structure members or devices as substructure(6)一次性装设,永久使用,无须维修调换,比较符合工程应用的实际情况。Once installed, they can be used permanently without repair orreplacement
4.1.2结构被动调谐减震控制的优越性和应用范围 Advantages and applications of structural passive tuned vibration control Advantages (1)有效衰减结构的振动反应;Effectively reduce the vibration response of structure (3)使用范围广;节省结构造价 the wide range of application, cost-saving of the structure (3)为某些重大结构的减震提供难以代替的途径; providing some important structures with irreplaceable ways of vibration absorption (4)不仅适用于新建结构的减震控制,也特别适用于已有结构的减震改良; Not only suitable to the vibration control of the new structures but also the improvement of the existed structures (5)可充分利用已有结构的部件或设备作为子结构,不必专设;Making the full use of the existing structure members or devices as substructure (6)一次性装设,永久使用,无须维修调换,比较符合工程应用的实际情况。 Once installed, they can be used permanently without repair or replacement
4.1.2结构被动调谐减震控制的优越性和应用范围Advantagesand应用范围:applications(1)多层、高层、超高层建筑;multi-storey, high-rise, and super high-rise buildings;(2)高算塔架、烟图结构等;high-risetowers, chimneys and otherstructures;(3)大跨度桥梁;large-span bridges;(4)海洋平台或其他特种结构;offshoreplatform orotherspecial structures;(5)已有建筑物的“加层减震”。Adding vibration absorption layers on the existed buildings
4.1.2结构被动调谐减震控制的优越性和应用范围 Advantages and 应用范围:applications (1)多层、高层、超高层建筑; multi-storey, high-rise, and super high-rise buildings; (2)高耸塔架、烟囱结构等; high-rise towers, chimneys and other structures; (3)大跨度桥梁; large-span bridges; (4)海洋平台或其他特种结构; offshore platform or other special structures; (5)已有建筑物的“加层减震”。 Adding vibration absorption layers on the existed buildings
大楼受风吹袭时会微幅摆动,会使大楼里的人有晕眩之感,阻尼器可以减小微幅摆动,提高人的舒适感。该阻尼器由41层12.5cm厚的实心钢板堆叠焊接而成,重达730吨。The building vibrate slightly under windexcitationforlongduration,whichmakespeopleinside dizzy. To increase comfort of workingpeople and function of installed machineries andequipments, the dampers are needed.The TMDwasmadeof41layersof12.5cmsteelplatesRendering of Taipei 101 Buildingwelded together,over730ton weight.TMD台北101大楼风阻尼器Winddampers of Taipei101Building
台北101大楼风阻尼器 Wind dampers of Taipei 101 Building 大楼受风吹袭时会微 幅摆动,会使大楼里 的人有晕眩之感,阻 尼器可以减小微幅摆 动,提高人的舒适感。 该阻尼器由41层 12.5cm厚的实心钢板 堆叠焊接而成,重达 730吨。 The building vibrate slightly under wind excitation for long duration, which makes people inside dizzy. To increase comfort of working people and function of installed machineries and equipments, the dampers are needed. The TMD was made of 41 layers of 12.5cm steel plates welded together, over 730 ton weight
上海环球金融中心风阻尼器Wind Damperin Shanghai World Financial Center
上海环球金融中心风阻尼器 Wind Damper in Shanghai World Financial Center
4.2单质点结构被动调谐减震控制Vibration control of SDOF system with TMD(TLD)对于多质点体系的剪切形结构在地震或风作用下其第一振型的振动反应占结构总反应约80%以上。因而,对于某些多质点结构体系而言,在工程上有时可以近似简化为具有基本振型的等效单质点体系进行分析。For a shear MDOF structural system under earthquakeor wind action, the vibration response of the first modeaccount for more than about 8o% of the total responseof structure. Thus in engineering practice, some MDOFstructural system can be approximately simplified as anSDOF system with the same fundamental mode
4.2 单质点结构被动调谐减震控制 Vibration control of SDOF system with TMD(TLD) 对于多质点体系的剪切形结构在地震或风作用下, 其第一振型的振动反应占结构总反应约80%以上。因而, 对于某些多质点结构体系而言,在工程上有时可以近似 简化为具有基本振型的等效单质点体系进行分析。 For a shear MDOF structural system under earthquake or wind action, the vibration response of the first mode account for more than about 80% of the total response of structure. Thus in engineering practice, some MDOF structural system can be approximately simplified as an SDOF system with the same fundamental mode